This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Suppose we randomly selected 250 people, and on the basis of their responses to a survey we assigned ... (Read 132 times)

cabate

  • Hero Member
  • *****
  • Posts: 537
on: Jun 24, 2018
Suppose we randomly selected 250 people, and on the basis of their responses to a survey we assigned them to one of two groups: high-risk group and low-risk group. We then recorded the blood pressure for the members of each group. Such data are called:
 a. observational. c. matched.
  b. experimental. d. None of these choices.

Question 2

One of the simplest ways to reduce random variation is to smooth the time series using moving averages and exponential smoothing.
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

asdfasdf

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jun 24, 2018
Answer to Question 1

A

Answer to Question 2

T


cabate

  • Member
  • Posts: 537
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

Kedrick2014

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Relative Energy Consumption per Person for Selected Countries Relative Energy Consumption per Person for Selected Countries
Blending inheritance formed the basis of nineteenth-century critiques of evolution by natural select Blending inheritance formed the basis of nineteenth-century critiques of evolution by natural select
Interventions for Selected Co-Occurring Conditions Interventions for Selected Co-Occurring Conditions
Selected Topical Corticosteroids for Dermatitis and Related Symptoms Selected Topical Corticosteroids for Dermatitis and Related Symptoms
Selected Hypothalamic and Pituitary Hormones Selected Hypothalamic and Pituitary Hormones
Calories in Selected Alcoholic Drinks Calories in Selected Alcoholic Drinks
Video: Semidiscontinuous DNA replication

For a complete list of videos, visit our video library